Prospecting Potential of the Gold Deposit in the Basic-Ultrabasic Rocks,West Baerluke Mountain,Xinjiang

Baerluke Mountain is located in the western margin of west Junggar.There is a nearly east-west ophiolite melange belt named Yejiebai in southwest Barluke Mountain.The basic-ultrabasic rocks were well-developed in the belt.Lots of gold anomaly and mineralized body have been discovered in the basic-ultrabasic rock and the surrounding rock.Existing work and prospecting practice show that the spatial occurrence of gold mineralized body is closely related to basic-ultrabasic rock in the west of Yejiebai ophiolite melange belt and the orebody characteristics are similar to the typical basic-ultrabasic rock type gold deposits.By studying the metallogenic theory of basic-ultrabasic rock type gold deposits,combined with the characteristics of mineralization bodies,metallogenic conditions,geophysical and geochemical features,and ore-forming regularity,the authors hold that the contact zone with well-developed serpentinization of basic-ultrabasic rocks and their south-north wall rocks,basic-ultrabasic rock with well-developed tectonic and serpentinization,the ductile shear zone in the ophiolite melange and the structural position nearby are all favorable mineralization regions.The basic-ultrabasic rock type gold deposits are prospective in the eastern Yejiebai ophiolite melange belt and Suyunhe ophiolite melange belt.